Sash-lock.



No. 759,642. v PATENTED MAY 10, 1904. L. H. SPARKS. SASH LocK.

APPLICATION FILED JAN. 13. 1904.

K0 MODEL.

UNITE STATES Patented May 10, 1904:.

LORENZQ H. SPARKS, OF WARREN, OHIO.

SASH-LOCK.

SPECIFICATION forming part of Letters Patent No. 759,642, dated May 10, 1904:.

Application filed January 13, 1904:. Serial No. 183,837. (No model.)

To all whom it may concern.- Be it known that I, LORENZO I-I. SrARKs, a citizen of the United States of America, residing at l/Varren, in the county of Trumbull and State of Ohio, have invented certain new and useful Improvements in Sash-Locks, of which the following is a specification, reference being had therein to the accompanying drawings. This invention relates to certain new and useful improvements in locks, and more par-' ticularly to that class which are adapted to be used upon window-sashes and the like; and the object of the invention is to provide a lock whereby the sashes of the window may be quickly and effectually locked together in such a manner as the sashes will beheld firmly and all jarring and rattling of the same prevented.

Another object of my invention is to provide a lock which will be extremely simple in construction, strong, durable, and highly eificient when used, and may be readily applied to the different styles of sash now in use, the lock presenting a neat appearance and of such construction that the same may be readily operated by persons not skilled in its use.

In describing the invention in detail reference is had to the accompanying drawings, forming apart of this application, and wherein like numerals of reference indicate like parts throughout the several views, in which-- Figure 1 is a fragmentary view of the frame of the window, showing my improved lock applied to the sashes thereof. Fig. 2 is a horizontal sectional view taken on the line 2 2 of Fig. 1. Fig. 3 is a vertical sectional view of my improved lock, showing the same applied to the sashes. Fig. 41 is a cross-section through one of the center beams, this View being taken on line 4 4 of Fig. 3. Fig. 5 is a detail perspective View of the different parts of the lock.

In the drawings, reference-numeral 1 indicates the frame of the window, carrying the upper sash 2 and lower sash 3. In the meeting-rail of the upper sash I provide the central recess 4:, over which I secure by any desired means the angle-plate 5, said plate having formed in its horizontal portion 6 a T-shaped slot 7, which communicates with a vertical slot 8, formed in the vertical portion 9 of the plate 5. In the center of the meeting-rail 10 of the lower sash 3 Iprovide the aperture 11, and on the one side of the meeting-rail 10 I provide the countersunk plate 12, having an aperture 14: formed therein, which communicates with the aperture 11 of the meeting-rail, and upon the outer side of this meeting-rail I provide a recess 15, in which is placed the cup 16. This cup carries a central aperture 17, and its edges are cut away to form cams, as indicated at 18 and 19, and to properly brace this cup I provide a front plate 20, which may be secured to themeeting-rail of the sash by any desired means.

Adapted to pass through the apertures 11, 1/1, and 17 is the locking-bolt 21 having a square shank 22, the outer end of which is rounded and screw-threaded, as indicated at 23, to carry the winged nut 24 and the locknut 25. The other end of the bolt 21 carries the enlarged head 26, the object of which will be hereinafter described.

The operation of my improved window-lock is as follows: We will assume that the lower sash is raised and it is desired to lock the two sashes together. The lower sash is lowered until the enlarged head 26 of the lock-bolt 21. passes through the T-shaped slot 7.0'f the upper sash 2 and engages upon the inner sides of the vertical side 9, at which time the winged nut 24 is rotated, the wings riding upon the cams 18 and 19 of the cup 16, thus drawing the bolt outwardly until the enlarged head 26 has firmly gripped the upper sash. By means of the lock-nut 25 the movement of the lock'bolt may be readily adjusted to suit the differentsized sashes,whereby the same may be readily held in contact with each other and all jar and rattling of the windows dispensed with.

It will be noted from the foregoing description that it will be impossible for a person upon the outside of the window to operate the lock in order to raise or lower either one of the sashes,while upon the inside the same may be readily and easily manipulated when it is desired. It will be further noted that various changes may be made in the details of construetion without departing from the general spirit of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A Window-lock comprising a slotted plate carried by one of the sash meeting-rails, a bolt carried by the meeting-rail of the other sash and having a head to engage said plate, a handoperated nut on the opposite end of said bolt, and a means to engage said nut having camshaped portions.

2. In a window-lock, the combination of an upper and lower sash, an angle-plate having a T-shaped slot formed therein, a locking-bolt having an enlarged head formed upon its one end, means carried by the sash to lock said enlarged head Within the angle-plate, means carried by the said locking-bolt for adjusting the locking engagement of said bolt, substantially as described.

3. In a window-lock, the combination of an upper and lower sash, an angle-plate carried by the upper sash, said angle-plate having a T- shaped slot formed therein, a locking-bolt carried by the lower sash, said lockingbolt having an enlarged head formed thereon and adapted to engage in the angle plate, a nut carried by said locking-bolt, a cup having upwardly camshaped edges, means carried by said locking-bolt for adjusting said nut thereon, substantially as described.

4. In a window-lock, the combination of an upper and lower sash, of an angle-plate carried by the upper sash, said angle-plate having a T- shaped slot formed therein, a locking-bolt carried by the lower sash, said locking-bolt having an" enlarged head formed on its one end and adapted to engage within the T- shaped slot of the angle-plate, a winged nut carried by the other end of said bolt, a cup having upwardly cam-shaped edges, a jam-nut carried by said bolt, substantially as described.

5. In a Window-lock, the combination of an upper and lower sash, of an angle-plate carried by the upper sash, said angle-plate having a T- shaped slot formed therein, a locking-bolt LORENZO H. SPARKS.

itnesses J. L. HERZOG, JOHN R. LAOHMAN. 

